are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widthse confidence intervals.ma random sample of 50 business days, the mean closing price of a certain stock was $119.54. Assume the population standard deviation is $11.44......- 90% confidence interval is (. ).und to two decimal places as needed.)

Given:n=20 ,x¯=41, σ=4At 90% confidence level , z score=1.645At 95% confidence level , z score=1.96

Answered: are given the sample mean and the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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